From the 1st editon: This smooth introduction for advanced undergraduate students starts with the fundamentals of lasers and pulsed optics. Thus prepared, the student learns how to generate short and ultrashort laser pulses, how to manipulate them, and how to measure them. Finally, spectroscopic implications are discussed. This rounded text gives the student an up-to-date introduction to one of the most exciting fields in laser physics. The 2nd edition will be completely revised, and will include two new chapters entitled "Coherent Control and Related Femtochemistry" and "Towards Attosecond and High Order Harmonics Generation"